Triangular numbers which are leg of a Pythagorean triple with hypotenuse in A213188.

Terms

a(0) =6a(1) =36a(2) =91a(3) =120a(4) =210a(5) =253a(6) =300a(7) =378a(8) =528a(9) =630a(10) =1176a(11) =2016a(12) =2346a(13) =3003a(14) =3240a(15) =3828a(16) =4560a(17) =4656a(18) =4950a(19) =5460a(20) =6105a(21) =6903a(22) =7140a(23) =7260a(24) =8778a(25) =10296a(26) =11628a(27) =13530a(28) =14028a(29) =14196